A kind of heat-dissipating powder coating and preparation method thereof

A technology of powder coatings and heat-dissipating fillers, applied in powder coatings, polyester coatings, anti-corrosion coatings, etc., can solve problems such as poor heat dissipation effect of a single heat-dissipating material, failure to solve the problem of filler accumulation, and no specific solution proposed. Promote the effect of heat dissipation, promote the degree of directional arrangement, and improve the effect of heat dissipation

Active Publication Date: 2021-08-24
广东华江粉末科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another example is that the patent No. PCT / JP2011 / 0505 discloses a heat-dissipating coating composition, but the problem of filler accumulation cannot be solved overall, and the heat-dissipating effect of a single heat-dissipating material is poor
[0004] In summary, in the field of powder coating preparation, there are still many practical problems that need to be dealt with in its practical application, and no specific solutions have been proposed.

Method used

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  • A kind of heat-dissipating powder coating and preparation method thereof
  • A kind of heat-dissipating powder coating and preparation method thereof
  • A kind of heat-dissipating powder coating and preparation method thereof

Examples

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Embodiment 1

[0033] The invention provides a heat-dissipating powder coating and a preparation method thereof. The heat-dissipating powder coating comprises the following components in mass percentage: 59.3% of a saturated carboxyl-terminated polyester resin, 4.5% of a curing agent, 20.8% of a composite heat-dissipating filler, and 1% of an alignment agent , titanium dioxide 5%, leveling agent 0.5%, magnesium aluminum silicate 1%, brightener 0.5%, benzoin 0.2%, polytetrafluoroethylene 0.2%, antioxidant 0.1%, pigment 1.5%, aluminum pigment 5.4%; The composite heat-dissipating filler is prepared by successively ball milling, mixing and spheroidizing hexagonal boron nitride, aluminum hydroxide and aluminum oxide.

[0034] Wherein, in this embodiment, the saturated carboxyl-terminated polyester resin is a polyester resin with an acid value of 30-40 mgKOH / g, its addition amount is 59.3%, and the corresponding curing agent is TGIC, and the addition of the curing agent TGIC The amount is 4.5%; th...

Embodiment 2

[0044] The invention provides a heat-dissipating powder coating and a preparation method thereof. The heat-dissipating powder coating comprises the following components in mass percentage: 39.7% of saturated carboxyl-terminated polyester resin, 30% of curing agent, 13.2% of composite heat-dissipating filler, and 1% of orientation alignment agent , titanium dioxide 5%, leveling agent 1.0%, magnesium aluminum silicate 1%, brightener 0.3%, benzoin 0.5%, polytetrafluoroethylene 0.2%, antioxidant 0.3%, pigment 1.0%, aluminum pigment 6.8%; The composite heat-dissipating filler is prepared by successively ball milling, mixing and spheroidizing hexagonal boron nitride, aluminum hydroxide and aluminum oxide.

[0045] Wherein, in this embodiment, the saturated carboxyl-terminated polyester resin is a polyester resin with an acid value of 30-75 mgKOH / g, its addition amount is 39.7%, and the corresponding curing agent is an epoxy resin, and the epoxy resin The added amount is 30%; the lev...

Embodiment 3

[0055] The invention provides a heat-dissipating powder coating and a preparation method thereof. The heat-dissipating powder coating comprises the following components in mass percentage: 34.5% of a saturated carboxyl-terminated polyester resin, 18% of a curing agent, 15.5% of a composite heat-dissipating filler, and 2% of an alignment agent , titanium dioxide 5%, leveling agent 0.6%, magnesium aluminum silicate 1%, brightener 0.1%, benzoin 0.3%, polytetrafluoroethylene 0.4%, antioxidant 0.2%, pigment 1.0%, aluminum pigment 10.4%; The composite heat-dissipating filler is prepared by successively ball milling, mixing and spheroidizing hexagonal boron nitride, aluminum hydroxide and aluminum oxide.

[0056] Wherein, in this embodiment, the saturated carboxyl-terminated polyester resin is a polyester resin with an acid value of 30-75 mgKOH / g, its addition amount is 34.5%, and the corresponding curing agent is an epoxy resin, and the epoxy resin The added amount is 18%; the level...

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Abstract

The invention provides a heat-dissipating powder coating and a preparation method thereof. The powder coating comprises saturated carboxyl-terminated polyester resin, curing agent, composite heat-dissipating filler, alignment agent, titanium dioxide, polytetrafluoroethylene, aluminum pigment and other components; wherein The composite heat-dissipating filler is prepared from hexagonal boron nitride, aluminum hydroxide and aluminum oxide through ball milling, mixing and spheroidizing in sequence, which can effectively improve the thermal conductivity of the composite heat-dissipating filler and synergize with aluminum pigments, making the powder coating of the present invention It has a remarkable heat dissipation effect; the invention adds an alignment agent with a hydroxyl content of 1% to 2%, which has a strong affinity with aluminum hydroxide, aluminum oxide, magnesium aluminum silicate, and aluminum pigments, and effectively promotes the spheroidization of composite heat dissipation fillers and aluminum pigments The arrangement tends to be neat, and can effectively promote the establishment of a good overlap between the overall components in the formula, and generally prepare a powder coating with excellent comprehensive properties.

Description

technical field [0001] The invention relates to the field of powder coating preparation, in particular to a heat-dissipating powder coating and a preparation method thereof. Background technique [0002] The radiator releases heat during operation. If the heat dissipation effect is poor, it will affect the use of electrical appliances. The coating of heat dissipation powder coating can improve the heat dissipation efficiency of the radiator surface and quickly reduce the temperature of electrical appliances. Thereby reducing the failure rate of the electric radiator and prolonging the service life of the radiator and the electric appliance. [0003] The powder coating is applied on the surface of the substrate, relying on strengthening the heat conduction and heat radiation capabilities of the surface of the object, improving the heat dissipation efficiency of the surface, and achieving the purpose of cooling and heat dissipation. For heat-dissipating powder coatings, it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D5/03C09D5/10C09D7/61
CPCC08K2003/0812C08K2201/003C09D5/033C09D5/103C09D5/18C09D167/00C08K13/04C08K7/24C08K3/08C08K3/34
Inventor 魏育福蔡劲树李啟聪莫剑辉
Owner 广东华江粉末科技有限公司
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